KOH(K) Series—Petrochemical Process Pump

Overview

The pumps are horizontal, single-stage, single-suction, cantilevered and centrally supported centrifugal pumps. The design standards are API 610 and GB3215. API code is OH2.

KOH has a conventional design with closed impeller, while KOK is an open impeller design.

Pumps can be applied in the transportation of most process medium because of extensive performance range, extremely sophisticated design and a variety of constructions. 

Application Range

This series of pumps are mainly used in oil refineries, petrochemicals, cryogenic engineering, coal chemical, chemical fiber and general industrial processes, power plants, large and medium heating and air conditioning units, environmental protection engineering, offshore industries and desalination plants, as well as other industries and fields.

Performance Range:

Flow range: 2~3000m3/h

Head range: 15~300m

Applicable temperature: -80~450°C

Design pressure: 4.0MPa

Structural Features

① The bearing suspension has been designed as a whole, which is lubricated by oil bath, and the oil level is adjusted by the constant oil cup automatically.

② According to the working conditions, the bearing suspension can be air-cooled (with cooling ribs) and water-cooled (with water-cooled sleeve). The bearing is sealed by a labyrinth dust disk.

③ The motor adopts diaphragm coupling with extended section. It is very convenient and quick to maintain without disassembling the pipeline and motor.

④ Pumps has high degree of generalization. There are fifty-three specifications in the full range, and only seven types of bearing frame components are needed.

⑤ The pump body with an outlet diameter of 80mm or more is designed as double volute type to balance the radial force, thus it ensures the service life of the bearing and the deflection of the shaft at the shaft seal.